This accordion is a bit of a rarity, for starter it faceplate in this style was only produce for two years on 70's style diana accordions. The second rarity is the fact that a lot of people probably couldn't afford it as they went brand new for £4K, the third is the triple reed system which gives it its rich and deep sound! This accordion has five couplers on the treble and three on the bass. This accordion weighs quite a bit and I have had to do alot of research and searching around for straps which fit properly as apparently its dimensions are non standard for this kind of 120 bass accordion.
This example was firstly inherited from my granddad and I have extensively gigged it. So the squeezebox has seen better days and chronically needs servicing. But I can't afford it as I've been quoted in excess of £1200 to have it tuned and repaired, even though its mostly in tune and mechanically sound. Its just as the rarity of the unit there is not a lot of parts around for this exact model and repairing agents are far away and far inbetween! So it may take me a few years before I get it back to its original condition (by then I may buy a new accordion as I'm currently looking at buying a roland digital accordion like a FR-7, as this would help me better in my work as a musician and composer. I can get a 2nd hand FR-7 for the same price as the repair and reconditioning of this piano accordion, unfortunately.)
I've owned four accordions now by different manufactures and they all have their quirks. But this accordion definitely sounds the best and has a very good sounding musette and a very deep bass on the bass side of the box!